Reiji activates his SetContinuous Trap "Doppler Demon Dowsing" as a monster was Special Summoned to his opponent's field to Special Summon 1 monster with the same name as a FiendPendulum Monster he controls from his deck. As he controls only 1 Fiend Pendulum Monster ("D/D Dog"), Reiji Special Summons a copy of "D/D Dog" from his deck. As a Fusion, Synchro or Xyz Monster was Special Summoned to his opponent's field, Reiji activates the effect of "D/D Dog" to negate that monster's effect(s) and prevent it from attacking. "Starving Venemy" had its effects negated and cannot attack.[Notes 1]

Reiji activates the effect of "Doppler Demon Dowsing" as there are 2 Fiend Pendulum Monsters with the same name on the field by sending itself to the GY to Special Summon 1 monster from his deck with the same name as those monsters. Reiji Special Summons a copy of "D/D Dog" from his deck. As a Fusion, Synchro or Xyz Monster was Special Summoned to his opponent's field, Reiji activates the effect of "D/D Dog" to negate that monster's effect(s) and prevent it from attacking. "Dark Anthelion" had its effects negated and cannot attack.[Notes 1]

Yuya tributes all monsters he controls, including 1 Dragon Pendulum Monster, to Special Summon "God-Eyes Phantom Dragon" from his hand. He Summons it in Attack Position (3000/2500). Reiji activates his Set Continuous Trap "Go-D/D World". As Reiji controls 5 "D/D" cards, all "D/D" cards he controls are also treated as "Go-D/D" cards. During the turn "Go-D/D World" is activated, his opponent cannot attack. "D/D Ark", "D/D Evil" and 3 copies of "D/D Dog" are treated as "Go-D/D" cards, and Yuya cannot attack this turn.

The Pendulum Effect of "D/D Ark"[Notes 3] applies as there Reiji's other Pendulum Zone, he can Pendulum Summon any monster regardless of his Pendulum Scale, but he can only Pendulum Summon 1 monster while applying this effect. Reiji Pendulum Summons "Divine Go-D/D/D Zero King Zero God Reiji" in Attack Position (0/0).